<template>
  <div class="login-container">

    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left" @click="reload()">

      <div class="title-container">
        <h3 class="title">{{ $t('login.title') }}</h3>
        <lang-select class="set-language" @handleBtnClick='handleBtnClick' />
      </div>

      <el-form-item prop="username">
        <span class="svg-container svg-container_login">
          <svg-icon icon-class="user" />
        </span>
        <el-input v-model="loginForm.username" :placeholder="$t('login.username')" name="username" type="text" auto-complete="on" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :type="passwordType"
          v-model="loginForm.password"
          :placeholder="$t('login.password')"
          name="password"
          auto-complete="on"
          @keyup.enter.native="handleLogin" />
        <span class="show-pwd" @click="showPwd">
          <svg-icon icon-class="eye" />
        </span>
      </el-form-item>
      <el-checkbox v-model="checked" style="float:right">{{ $t('login.remember_info') }}</el-checkbox>
      <!-- <el-checkbox v-model="isLogin" style="float:right">自动登录</el-checkbox> -->

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">{{ $t('login.logIn') }}
      </el-button>
      <button v-show="display" id="btn" @click="handleBtnClick">点击按钮{{ flag }}</button>
      <!-- <button @click="handleBtnClick" id="btn" >点击按钮{{flag}}</button> -->

      <!--<div class="tips">-->
      <!--<span>{{$t('login.username')}} : admin</span>-->
      <!--<span>{{$t('login.password')}} : {{$t('login.any')}}</span>-->
      <!--</div>-->
      <!--<div class="tips">-->
      <!--<span style="margin-right:18px;">{{$t('login.username')}} : editor</span>-->
      <!--<span>{{$t('login.password')}} : {{$t('login.any')}}</span>-->
      <!--</div>-->

      <!--<el-button class="thirdparty-button" type="primary" @click="showDialog=true">{{$t('login.thirdparty')}}</el-button>-->
    </el-form>

    <!--<el-dialog :title="$t('login.thirdparty')" :visible.sync="showDialog" append-to-body>-->
    <!--{{$t('login.thirdpartyTips')}}-->
    <!--<br/>-->
    <!--<br/>-->
    <!--<br/>-->
    <!--<social-sign />-->
    <!--</el-dialog>-->

  </div>
</template>

<script>
// import { isvalidUsername } from '@/utils/validate'
import LangSelect from '@/components/LangSelect'
import SocialSign from './socialsignin'
import Cookies from 'js-cookie'
import CryptoJS from 'crypto-js'

export default {
  name: 'Login',
  components: { LangSelect, SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      callback()
    }
    const validatePassword = (rule, value, callback) => {
      if (!value || value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      flag: 0,
      display: false,
      checked: false,
      isLogin: false,
      loginForm: {
        username: '',
        password: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      passwordType: 'password',
      loading: false,
      showDialog: false
    }
  },
  mounted() {
  },
  created() {
    this.loadAccountInfo()
    // window.addEventListener('hashchange', this.afterQRScan)
  },
  destroyed() {
    // window.removeEventListener('hashchange', this.afterQRScan)
  },
  methods: {
    handleBtnClick() {
      document.getElementById('btn').click()
      // console.log('点击了');
      this.flag++
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true

          // 定义要存入cookie的对象
          let accountInfo = ''
          // 拿到输入框中的密码，使用AES加密
          var pwd = this.loginForm.password
          const newPwd = CryptoJS.AES.encrypt(pwd, 'secret key 123')

          if (this.checked) {
            console.log('选择记住密码')
            accountInfo = this.loginForm.username + '&' + newPwd // 将加密后的密码存入cookie对象中
            this.setCookie('accountInfo', accountInfo, 1440 * 7) // 传入账号名，密码，和保存天数7个参数（7天）
          } else {
            console.log('清空cookie')
            this.clearCookie('accountInfo')
          }

          this.$store
            .dispatch('LoginByUsername', this.loginForm)
            .then((response) => {
              console.log('denglu', response)
              this.loading = false
              this.$router.push({ path: '/' })
            })
            .catch((err) => {
              this.$message.error(err) // 登录失败提示错误
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    afterQRScan() {
      // const hash = window.location.hash.slice(1)
      // const hashObj = getQueryObject(hash)
      // const originUrl = window.location.origin
      // history.replaceState({}, '', originUrl)
      // const codeMap = {
      //   wechat: 'code',
      //   tencent: 'code'
      // }
      // const codeName = hashObj[codeMap[this.auth_type]]
      // if (!codeName) {
      //   alert('第三方登录失败')
      // } else {
      //   this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
      //     this.$router.push({ path: '/' })
      //   })
      // }
    },

    /** *********** Cookie start ***************/
    clearCookie(cookieName) {
      var exp = new Date()
      exp.setTime(exp.getTime() - 1)
      var cval = this.getCookie(cookieName)
      if (cval != null) {
        document.cookie =
          cookieName + '=' + cval + ';expires=' + exp.toGMTString()
      }
    },

    setCookie(cookieName, value, expiremMinutes) {
      var exdate = new Date()
      exdate.setTime(exdate.getTime() + expiremMinutes * 60 * 1000)
      document.cookie =
        cookieName +
        '=' +
        escape(value) +
        (expiremMinutes == null ? '' : ';expires=' + exdate.toGMTString())
    },

    getCookie(cookieName) {
      if (document.cookie.length > 0) {
        var c_start = document.cookie.indexOf(cookieName + '=')
        if (c_start != -1) {
          c_start = c_start + cookieName.length + 1
          var c_end = document.cookie.indexOf(';', c_start)
          if (c_end == -1) c_end = document.cookie.length
          return unescape(document.cookie.substring(c_start, c_end))
        }
      }
      return ''
    },
    /** ***********Cookie end***************/

    // 预读取cookie中用户信息
    loadAccountInfo() {
      const self = this
      // admin%26U2FsdGVkX1+/ZtAGWFVi37gNwA7TUZmQM+yazInCPxs%3D
      const accountInfo = self.getCookie('accountInfo')

      // 如果cookie里没有账号信息
      if (Boolean(accountInfo) == false) {
        console.log('cookie中没有检测到用户账号信息！')
        return false
      } else {
        // 如果cookie里有账号信息
        console.log('cookie中检测到账号信息！现在开始预填写！')
        let userName = ''
        let passWord = ''
        const index = accountInfo.indexOf('&')

        userName = accountInfo.substring(0, index)
        passWord = accountInfo.substring(index + 1) // 拿到加密后的密码
        // 解密
        var bytes = CryptoJS.AES.decrypt(passWord.toString(), 'secret key 123')
        // 拿到解密后的密码（登录时输入的密码）
        var newpassWord = bytes.toString(CryptoJS.enc.Utf8)

        self.loginForm.username = userName
        self.loginForm.password = newpassWord
        self.checked = true
      }
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #eee;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
    &::first-line {
      color: $light_gray;
    }
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;
      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: $bg;
  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 520px;
    padding: 35px 35px 15px 35px;
    margin: 120px auto;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
    &_login {
      font-size: 20px;
    }
  }
  .title-container {
    position: relative;
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 60px auto;
      text-align: center;
      font-weight: bold;
    }
    .set-language {
      color: #fff;
      position: absolute;
      top: 40px;
      right: 0px;
    }
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .thirdparty-button {
    position: absolute;
    right: 35px;
    bottom: 28px;
  }
}
</style>
